Smelting-furnace and refining-converter



(No Model.)

0. M. ALLEN. SMELTING FURNAGE AND REFINING CONVERTER.

Patented May 1, 1894 in E If I L I ENT rrro CHARLES M. ALLEN, OF BUTTE,MONTANA.

SMELTlNG-FU RNACE AND REFINlNG-CONVERTER.

SPECIFICATION forming part of Letters Patent No. 519,221, dated May 1, 1894.

Application filed December 12, 1892- Serial No. 454,944. (l lo model.)

To 00% whom it may concern.-

Be' it known that 1, CHARLES M. ALLEN, of Butte city, in the county of Silver Bow and State of Montana, have invented a new and useful Improvement in smelting Furnaces and Refining-Converters, of which the following is a specification.

The object of my invention is to make an improved water jacket bottom for blast furnaces or converters, or both combined; and the invention consists in the features and combinations hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a vertical sectional elevation; Fig. 2 a cross section through the bottom on line 2 of Fig. 1; Fig. 3 a broken side elevation of the top of the overflow pipe; and Fig. 4 a section showing the top andsides of the bottom jacket formed of one continuous plate.

A is the crucible or metal receiving chamher; a the lower tuyeres, and ct the metal tap thereof; B the reducing chamber, b the upper tuyeres, and b the slag spout thereof; 0 the opening for the introduction of concentrates, ore, matte or other substances to be treated; D the bottom water jacket; E thimbles for supporting the upper plate thereof; F a pipe for supplying water; and G an overflow pipe to permit the escape of water. p i

As the general construction of the smelting furnace, tuyeres, &c., will be readily understood from the drawings, I consider any extended explanation thereof unnecessary.

In making my improved furnace, I make a bottom water jacket, of a size and shape to be inserted frombelow and to be surrounded by the lower edges of the side water jackets. By this arrangement there will be avoided the burning of the side jackets near the bottom, which occurs when they rest upon the bottom jacket, owing to sediment from the water settling' in the bottom, to an extent which prevents free circulation of the water at that point. The settlement of mud or sediment in the bottom of the side jacket, when extended below the upper surface of the bottom, as in my arrangement, cannot have this effect.

In order to avoid the making of any holes in the upper plate of the bottom waterjacket, and still have it supported so that it will-sus tain the heavy weight to which it is subjected in use, I arrange between the upper and lower supported without making holes through Ifurther them, ashas heretofore been done. construct this jacket of two plates only, by so flan ging the edges of the upper plate that they will extend down forming the sides, and join the lower plate, as shown at Fig. 4, which forms a jacket without a hole in either top or.

sides, and thus renders it absolutely safe from leaking internally-that is to say, if any of the joints opened, they would leak outside of j the furnace.

To supply the interior of the bottom jacket with water, I lead a pipe or pipes F, from any convenient Water source, so that the water may be pumped or flowed in, as desired. To afford an overflow for the water, I arrange a pipe or pipes G, whoseupper ends are extended to or near the upper plate of the bottom jacket, as shown in Fig. 1. The upper edge of the overflow pipe is preferably notched or corrugated, as shown in Fig. 3, so that in the insertion of the pipe it may contact the upper plate and when the water has filled the space between the upper and lower plates of the bottom jacket, it may escape oversuch upper edge or through such notched spaces. By arranging the upper end of the overflow pipe immediately below the upper plate of the bottom jacket, I prevent the steam from keeping the water away from the upper plate, inasmuch as it must rise to the upper plate in order to escape, and the steam which forms in the upper portion of the space can also freely escape through the overflow pipe, which it could not do" if the pipe leads from the bottom or other lower point.

While I have shown and described my improvement in connection with smelting furnaces it will be understood that I do not intend to limit myself to such uses, but contemplate combining it with all kinds of apparatus forthe smelting or refining of ores or molten materials, and while I have described more or less precise forms I do not desire to be limited thereto unduly any more than is pointed out in the claims, on the contrary I intend to Vary the form, construction and arrangement and the use of equivalents as cir- 5 cumstances may suggest or may seem expedient.

I claim 1. In combination with an apparatus for treating ores or molten material, a bottom Water jacket comprising an upper and a lower plate, a water supply pipe for admitting water into the space between the plates, and an overflow pipe extending up to near the bottom of the upper plate for the exit of water and steam from immediately below the upper plate, substantially as described.

2. In combination with an apparatus for treating ores or molten material, a bottom wa- V 4 ter jacket comprising an upper and a lower plate, a water supply pipe for admitting water into the space between the plates, and an overflow pipe corrugated or notched at its upper end and extending up to near the bottom of the upper plate for the exit of water and steam from immediately below the upper plate, substantially as described.

3. In apparatus for treating ores or molten material, the combination of side water jackets, and the removable bottom water jacket located Within and surrounded by the side water jackets, the water chambers of the side jackets extending down to the plane of the lower face of the removable bottom, substantially as described.

CHARLES M. ALLEN.

Witnesses:

CHAS. MATTISON, W. O. SPEER. 

